Electrode for use in the electrolytic evolution of gases



March 9 1926.

E. HEINZE 'ELECTRODE FOR USE 1N THE ELEcTRoLYTIc EVOLUTION or' GASES Filed Dec. 10 1924 I l I ll l Il l IIIIIIIIIIIIIIUHHHU n I l l I IIIIIIIMII Patented Mar. 9, 1926.

UNITED .STATES PATENT OFFICE.

ERNs'i` HEINZE, oE LEVERKUSEN, NEAR coLoeNE, GERMANY, AssIGNoR rro FARBEN- EABRIKEN VORM. ERIEDR. BAYER AND oo., 0E LEVERKUSEN, NEAR COLOGNE-0N- THE-REINE, GERMANY.

ELECTRODE FOR USE IN THE ELEGTEOLYTIC EVOLUTION OF GASES.

Application led December 10, 1924. Serial No. 755,083.

To all 'whom t may concern:

l Be it known that I, ERNST HEINZE, a citizen of Germany, residing at Leverkusen, near Cologne, in the State of lPrussia, Germany, have invented new and useful Improvements in Electrodes for Use in the Electrolytic Evolution of Gases, of which the following is a specification.

This invention relates to an electrode for use in the electrolytic evolution of gases.

According to this invention an electrode is provided with internal borings. or passages leading to the underside thereof, which serve to collect and lead olf any gas set free on the'underside of the electrode. ,y

The invention is illustrated in the accompanying diagrammatic figures of the draw# ing, of which Figure 1 is a longitudinal section, Figure 2 a transverse section and Figure 3 a plan of an electrolytic cell. Figure 4 shows a modification.

Referring to Figures 1 to 8, a is one electrode consisting of a block of graphite, for example, b a trough and c the other electrode, while el 'indicates the level of the electrolyte.

In the block a is a series of passages e which receive the gas evolved at the underside of the block; the gas collects in a communicating passage f and passes away through a pipe g.v 4

The shape and arrangement of the borings or passages may vary, for example each passage e may be replaced by a number of .borings.

Referringto Figure 4, the block is formed of a number of separate portions h threaded on a web z' clamped together.

Electrodes in accordance with this invention are differentiated from those of known construction in that the side wall and cover of the cell are formed by the electrode, while another and very important advantage in practice is that when the gas evolved is eX- plosive, there is no 'danger of explosion.

I claim 1. In an electrolytic cell for production of gases, a pair of electrodes in gas-tight spaced relation, one of said electrodes having within the same a ber and passages'leading thereto from the space .between the electrodes.

2. In an electrolytic cell for production of gases, a pair of electrodes in gas-tight spaced gas collecting chamrelation, one of said electrodes having within the same a number of passages leading l from the space between the electrodes and a cross passage connecting said gas passages and providing a collectingw chamber.

3. In an electrolytic cell for production of gases, a pair of'electrodes, one above the other, in gas-tight spaced relation, the upper of said electrodes having within the same a gas collecting chamber and passages leading thereto from the space between the electrodes. e

v4. In an velectrolytic cell for production of gases, a pair of electrodes, one above the other, in gas-tight spaced relation, the upper of said electrodes having wlthin the same la number of upwardly directed pas sages leading from the space between the electrodes, a collecting chamber' to whichv the upper ends of said passages are connected and means passing through the other.

electrode for permitting withdrawal of the gas at a point beneath the cell.

5. In an electrolytic cell for production o-f gases, a lower electrode and an upper electrode in gas-tight spaced relation, said upper electrode comprising a block forming A"a cap surmounting said lower electrode and having within the same `passages leading from the space collecting the gas produced.

6.- In an electrolytic -cell for production of gases, a lower electrode and an upper electrode in gas-tight spaced relation, said upper electrode comprising a cap surmounting said lower electrode and having within the same a gas collecting chamber and passages leading thereto from the space between the electrodes.

7. In an electrolytic cell for lproduction of gases, a lower electrode and an upper electrode in gas-tight spaced relation, said upper electrode comprising a graphitic block forming a cap surmounting said lower electrode and having within the same lpassages leading from the space between the e ectroes for collecting the gas produced.

8. An electrolytic cell for production of gases comprising a lower electrode, a support an upper electrode carried 'by said support tion to said lower electrode, said upper elecbetween the electrodes for trode comprising a cap surmounting saidl 'production of gases comprising a plain block y35 lower electrode and having within the same passages leading from the space between the electrodes for collecting the gas produced.

9. In an electrolytic cell for production of gases, a pair of electrodes in gas-tight spaced relation, one of said electrodes comprising a `Unlock composed of assembled elements, each of said elements having a reduced portion registering-with a similar'reduced portion in an adjacent element to provide passages leading from the space between the electrodes, and each of said elements having `also a\ cross passage registering with the cross passage of an adjacent element to provide a gas collecting chamber at the ends of the first named passages remote from the space between the electrodes.

10. An electrode for use in the electrolytic production of gases comprising a plain block of a substance having several borings andl passages extending through the block serving to collect the gas produced at the under side of the block and suitable pipes tolead olf the collected gases.

11. An electrode for use in the electrolytic production of gases comprising a plain block of carbon having several borings and passages extending through the' block serving to collect the gas produced at the under side of the block and suitable pipes to lead 'oil the collected gases.

12. An electrode for use in the electrolytic of graphite having several borings and passages extending through the block serving to collect the gas produced at the under side of the block and suitable pipes to lead off the collected gases.

13. An electrode for use in the electrolytic production of gases comprising a plain block of a substanceymade up of a number 0i' sepi arate portions having several borings and passages extending through the block serving to collecty the gas produced at the under 'side of the block and suitable pipes to lead off the collected gases.

14.k An electrode for use in the electrolytic production of gases comprising a plain block of carbon made up of a number of se arate portions, having several borings an passageso extending through the block serving to collect the gas produced at the under side ofthe block and suitable pipes to lead oi 'the collected gases.

15. An electrode for use in the electrolytic production of gases comprising a plain block of graphite made up of a number of separate portion-s, having several borings and passages extending through the block serving to collect the gas produced at the under side of the block and suitable pipes to lead ofi' the collected gases.

In testimony whereof I have hereunto set my hand.

ER-N ST HEINZE. 

